All-things BitTorrent weblog TorrentFreak broke down the numbers and rounded up the 25 most popular torrent sites of 2009. The results represent several best-known sites (like The Pirate Bay), but also probably a few you're not all that familiar with. Incidentally, number 20 on the list, Demonoid—a hybrid public and private tracker that we've always liked despite its recent downtime—is back up and running. And while we're on the subject, feel free to share your BitTorrent search engine of choice in the comments. [Top 25 Most Popular Torrent Sites of 2009 (Warning: Link contains one very small but NSFW thumbnail image of one of the sites)]